N531AS

Service difficulty reports · 380

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE n_number = 'N531AS' AND registry_match = 'registration'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR ASAA2014030507091Warning Light · false activationDURING APPROACH, LT SIDE OVERHEAT LIGHT ILLUMINATED. SECURED SWT FOR 4 MINUTES, TURN SWT ON WHILE ON GROUND. NORMAL INDICATIONS. ACFT GROUNDED. ACP BITE OF LT SIDE CONTROLLER IAW AMM TASK AMM 30-41, TASK 801, NO FAULTS NOTED. ALSO ACP AMM TASK 30-41-00-710Mar 5, 2014 · N531AS · Boeing 737890 · Windshield/Door Rain/Ice RemovalSDR ASAA2014021106833Shim · wornALL FAN BLADE SHIMS HAVE WORN COATING. ACFT GROUNDED. REPLACED FAN BLADE SHIMS IAW T/C 78472002, STEP 44.Feb 11, 2014 · N531AS · Boeing 737890 · Turbine Engine Air Inlet SectionSDR ASAA2014012312473Transceiver · malfunctionedSATCOM NOT DISPLAYED ON MCDU MENU PAGE AFTER POWER TRANSFER TO THE APU. ACFT GROUNDED. REPLACED SATCOM TRANSCEIVER IAW AMM REF TASK 23-15-00-400-801. OPS CKS GOOD.Jan 23, 2014 · N531AS · Boeing 737890 · Communications SystemSDR ASAA2014012312471Circuit Breaker · malfunctionedSATCOM NOT DISPLAYED ON MCDU MENU PAGE. ACFT GROUNDED. PULLED & RESET SATCOM CIRCUIT BREAKER. SATCOM OPS CHECKED NORMAL IAW MM 23-15-00.Jan 23, 2014 · N531AS · Boeing 737890 · Communications System WiringSDR ASAA2014011612419Transceiver · inoperativeHF NR 2 INOPERATIVE. ACFT GROUNDED. PERFORMED HF NR 2 TRANSCEIVER BITE. NO FAULTS FOUND, REF FIM TASK 23-11, TASK 801. PERFORMED HF COMM SYS RX/TX REF FIM TASK 23-11, TASK 806. NO FAULTS FOUND. R & R HF NR 2 TRANSCEIVER AS PRECAUTIONARY. OPS NORMAL REF Jan 16, 2014 · N531AS · Boeing 737890 · HF Communications SystemSDR ASAA2014011512397Hmu · malfunctionedWHILE ACCOMPLISHED, FOUND NR 1 ENG WITH FAULT 73-10351, FMV POS SIGNALS DISAGREE - SHORT TIME FAULT. ACFT GROUNDED. PERFORMED ACTUATORS TEST REF MM 71-00-00-700-807-F00 AND EEC TEST REF MM 73-21-00-700-804-F00 BOTH TESTS PASSED. ACCOMPLISHED RESISTANCE CHECKSJan 15, 2014 · N531AS · Boeing 737890 · Fuel Controlling SystemSDR ASAA2014010812346Warning Light · false activationCONT CABIN ZONE TEMP LIGHT ILLUMINATES ON RECALL. RESETS WHEN RESETTING MASTER CAUTION. ACFT GROUNDED. PERFORMED ZONE TEMP CONTROLLER BITE TEST IAW AMM 21-61-00 - FOUND NR 2 ZONE TEMP UNIT W/ FLT DECK CABIN SENSOR RED FAULT LIGHT ON IN PREVIOUS FLT MODE. VJan 8, 2014 · N531AS · Boeing 737890 · Cabin Temperature Control SystemSDR ASAA2014010512329Switch · malfunctionedON PDC WALK AROUND FOUND NR 1 THRUST REVERSER LIGHT ON OVERHEAD PANEL. ACFT GROUNDED. REPLACED LT AUTO-THROTTLE SWITCH PACK ASSY REF MM 76-11-07-400-802-F00. A/T SWITCH PACK OPS TESTS PASS REF MM 76-11-07-400-802.Jan 5, 2014 · N531AS · Boeing 737890 · Engine Thrust ReverserSDR ASAA2014010512326Battery Pack · no testEMERGENCY LIGHT BATTERY PACK FAILED TEST. ACFT GROUNDED. REMOVED, REPLACED, AND TESTED BATTERY PACKS IAW MM 33-51-06-960-805. OPS NORMAL.Jan 5, 2014 · N531AS · Boeing 737890 · Emergency LightingSDR ASAA2013121812166Light · inoperativeVNAV BUTTON LIGHT ON MCP INOPERATIVE. ACFT GROUNDED. REPLACED THE A/P MCP IAW MM 22-11-34-400-801. OPS CK GOOD IAW MM 22-11-34-740. PERFORMED THE DFGS LRU INTERFACE TEST FOR MCP IAW MM22-11-34/501, TEST GROUP 32, PASSED. PERFORMED LAND VERIFY TEST IAW MM 2Dec 18, 2013 · N531AS · Boeing 737890 · Lighting SystemSDR ASAA2013120896686Warning Message · false activationFMC DISAGREE DISPLAYED ON THE GROUND. ACFT GROUNDED. QRH PROCEDURE COMPLETED. BOTH FMC REBOOTED AND FMC DISAGREE DISPLAY DISAPPEARED.Dec 8, 2013 · N531AS · Boeing 737890 · Flight Management Computing Hardware SystemSDR ASAA2013112796553Circuit Breaker · malfunctionedAIRCRAFT APPEARS TO HAVE SATCOM INSTALLED BUT THERE IS NO SAT MENU AVAILABLE ON MCDU. ACFT GROUNDED. RESET SAT CIRCUIT BREAKER ON P18 C14 AND SYS RETURNED TO NORMAL. SYS CKS NORMAL.Nov 27, 2013 · N531AS · Boeing 737890 · Communications System WiringSDR ASAA2013112396501Fmc · malfunctionedSATCOM PROMPT NOT AVAILABLE OR DISPLAYED ON FMC. ACFT GROUNDED. DETERMINED TRANSCEIVER IN LOCKED UP STATE. ACCOMPLISHED MANUAL POWER CYCLE REF FIM 23-15-00-23-801. STEP C(4)(6). VERIFIED SATCOM PROMPT ON MCDU.Nov 23, 2013 · N531AS · Boeing 737890 · Central DisplaySDR ASAA2013110896345Unknown · multiple failON RECALL RECEIVED THE SPEED TRIM AND MACH TRIM FAIL LIGHT ILLUMINATED AND THE CAPTAINS FLIGHT DIRECTOR WARNING FLAG. ALT ARM SWITCH WOULD NOT ENGAGE. THEN FOUND C/B SYS. A WARNING LIGHT, BATTERY, ROW D1 POPPED. ACFT GROUNDED. CHECKED BEHIND PANEL OF WARNNov 8, 2013 · N531AS · Boeing 737890 · Standard Practices/StructuresSDR ASAA2013101196161Satcom · inoperativeDURING FLIGHT, ATTEMPTED TO USE SATCOM. THERE WAS NO SAT PROMPT ON MCDU MENU PAGE. ACFT GROUNDED. CYCLED POWER & SAT PROMPT IS ON BOTH MCDU MENU, PAGE REF FIM 23-15-00-23-801.Oct 11, 2013 · N531AS · Boeing 737890 · Communications SystemSDR ASAA2013100396103Exciter · failedDURING ENG START NR 1 ENG FAILED TO IGNITE WITH IGN LT SELECTED, QRH PROCEDURES WERE FOLLOWED TO ABORT THE ENG START, ING RT WAS SELECTED AND THE NR 1 ENG STARTED NORMALLY. ACFT GROUNDED. R & R NR 1 ENG LT IGNITION EXCITER REF AMM TASK 74-11-01/401 AND R & ROct 3, 2013 · N531AS · Boeing 737890 · Ignition Harness (Distribution)SDR ASAA2013093096080Warning Message · illuminatedRIGHT PACK LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. FAULT LOGGED AS THIS SIDE TCV FAILURE. PERFORMED BITE TEST REF MM TASK 21-61-00-700-806-002, NO FAULTS LOGGED, RESET CONTROLLER. RERAN BITE TEST 2 MORE TIMES, NO FAULTS LOGGED.Sep 30, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013071595612Antenna · malfunctionedTHE WEATHER RADAR IS SPOKING. SENDING DASHED DIAGONAL HASHES PRIMARILY AT THE 10 O`CLOCK & 2 O`CLOCK POSITIONS. CONDITION IS NOT CONTINOUS BUT RATHER PERSISTENT. THIS IS HAPPENING REGARDLESS OF THE RADARS TILT OR RANGE. IT DID PAINT KNOWN & VISIBLE WX. ACJul 15, 2013 · N531AS · Boeing 737890 · Weather Radar SystemSDR ASAA2013070795493Light · inoperativeAUTO THROTTLE ARM LIGHT INOPERATIVE. ACFT GROUNDED. WITH MAIN PANEL LIGHT CONTROL TO MID THROUGH FULL BRIGHT ARM LIGHT IS ILLUMINATED WHEN ARMED. ACCOMPLISHED AUTO THROTTLE SYS. OPS TEST, TEST PASS GROUND VERIFICATION PASS REF M/M 22-31-00-710-801, 22-11-34Jul 7, 2013 · N531AS · Boeing 737890 · Auto Throttle SystemSDR ASAA2013060795037Warning Light · illuminatedLIGHT ILLUMINATED DURING POWER INTERRUPTION. ACFT GROUNDED. RESET CIRCUIT BREAKERS SPCU NORMAL AND SPCU STBY B1 AND B2 RETESTED SYS IAW FIM TASK 24-31, SYS OPS CHECKED GOOD.Jun 7, 2013 · N531AS · Boeing 737890 · Electrical Power SystemSDR ASAA2013051994859Control Valve · malfunctionedLT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL. LIGHT EXTINGUISHES WHEN RESET. ACFT GROUNDED. NR 1 ZONE TEMP CONTROLLER SHOWS SEVERAL LT TCV FAULTS. REPLACED LT TCV (V139) REF AMM 21-61-21, BITE TEST OPS CK NORMAL REF AMM TASK 21-61-00, AND GROUND VERIMay 19, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013050294685Warning Light · false activationLEFT PACK LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. ACCOMPLISHED CABIN TEMP CONTROL BITE IAW FIM 21-61-00, TASK 801. OPS CHECK NORMAL, GROUND VERIFICATION SUCCESSFUL NO HISTORY 30 DAYS.May 2, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013042294578Warning Light · illuminatedON RECALL, A/C PACK LIGHT ILLUMINATED GOES OUT ON MASTER RECALL. RESET SYS AND RAN PACKS FOR 10 MINUTES, COMPLETED CABIN TEMP CONTROLLER BITE ON NR 1 AND NR 2 SYS, GROUND FUNCTIONAL CHECKED GOOD, FIM REF 21-61 TASK 801, NO HISTORY LAST 45 DAYS.Apr 22, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013040794385Pump · failedON ENGINE START NO LIGHT OFF, REACHED 52 N2 THEN ROLLED BACK. RAN QRC/QRH PROCEDURE. ATTEMPTED SECOND START GOT LIGHT OFF, FUEL FLOW WAS VERY ERRATIC, AND ENGINE ROLLED BACK AGAIN, ABORTED START. ACFT GROUNDED. INSPECTION OF 5TH STAGE CHECK VALVE IS GOOD PER MApr 7, 2013 · N531AS · Boeing 737890 · Engine Fuel PumpSDR ASAA2013040494374Circuit Breaker · trippedAT GATE -FMC 2 FAILED. COMPUTER 2 BREAKER IS OUT. CONFIRMED C/B OUT. VISUAL INSPECTION BEHIND P6 PANEL & AT NR 2 FMC COMP & RACK -GOOD. NO HISTORY -60 DAYS. C/B RESET NORMALLY & STAYS IN OPS CHECK & GROUND VERIFICATION OF NR 1 & NR 2 FMCS GOOD. REF MM 34-6Apr 4, 2013 · N531AS · Boeing 737890 · Flight Management Computing Hardware SystemSDR ASAA2013032794279Indication Sys · malfunctionedDURING DESCENT, LEFT FUEL AND CENTER FUEL QTY AND TOTAL FUEL WENT BLANK FOR 15-20 SECONDS. ALL OTHER INDICATIONS NORMAL. PERFORM FIM TASK 28-41, TASK 801. NO ACTIVE FAULTS FOUND. NO HISTORY LAST 30 DAYS.Mar 27, 2013 · N531AS · Boeing 737890 · Fuel Indicating SystemSDR ASAA2013031994207Panel · wornNR 2 ENGINE INLET AND FAN BLADES DETAILED INSPECTION. FOUND FAN DUCT PANEL NR 5 AT APPROX 430 O`CLOCK POS (ALF) HAS DAMAGED FASTENER HEADS FROM BEING LOOSE. REPLACED NR 5 FAN DUCT PANEL FASTENERS REF MM 72-23-07.Mar 19, 2013 · N531AS · Boeing 737890 · Turbine Engine Air Inlet SectionSDR ASAA2013031494173Control Valve · faultedON RECALL, MASTER WARNING, A/C - ANNUNCIATOR AND LT LIGHT CAME ON. ALL EXTINGUISHED UPON RESET. PERFORMED BITE TEST OF LT PACK ZONE TEMP CONTROLLER REF AMM 21-61-00-700-806-002. VERIFIED FAULT, FOUND FAULTED LT PACK TCV. REPLACED LT PACK TEMP CONTROL VALVMar 14, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013022393962Control Valve · malfunctionedON MASTER CAUTION RECALL, RT PACK LIGHT ILLUMINATES. DID THE QRH PROCEDURE - THE RT PACK LIGHT WENT OUT ON RESET. ACCOMPLISHED ZONE TEMP CONTROLLER BITE IAW FIM 21-62, TASK 801 - NR 2 CONTROLLER SHOWED FAULT THIS PACK TCV. PERFORMED T/S FOR TCV FAULT IAW FFeb 23, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013021693908Warning Light · illuminatedDURING RECALL OF MASTER CAUTION LIGHT THE RT PACK LIGHT ILLUMINATED. ON RESET LIGHT EXTINGUISHED. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST. NR 2 CONTROLLER FLAGGED RAM AIR ACT. (RT) FAULT IS INTERMITTENT. ABLE TO CLEAR WITH VERIFY. NO HISTORY PAST 3Feb 16, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013012393738Flow Divider · failedCSS PASSED WITH FAULT LIGHT ON FIRST ATTEMPTED FL 390. SECOND ATTEMPT STARTED BETWEEN FL 380 AND FL 350 APU STARTED FINE. ACFT GROUNDED. IAW POWERPLANT ENG REQUEST ACCOMPLISHED TASK 49-60, TASK 899 WITH FOLLOWING RESULTS FAULT HISTORY PAGE SHOWS 49-31016 JAJan 23, 2013 · N531AS · Boeing 737890 · APU Engine Fuel and ControlSDR ASAA2013011693689Actuator · faultedON FINAL APPROACH PACK LIGHT FOR LT A/C PACK ILLUMINATED ON RECALL. WAS ABLE TO RESET WITH MASTER CAUTION. VERIFIED PACK LIGHT ILLUMINATES ON RECALL AND WILL EXTINGUISH WITH RESET. RAN BITE CHECK ON BOTH TEMP CONTROLLERS, RAM AIR ACTUATOR FAULT SHOWED FOR LJan 16, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013011093653Warning Light · false activationLEFT PACK WARNING LIGHT ILLUMINATES WHEN RECALL IS PRESSED, EXINGUISHES WITH MASTER CAUTION RESET. PERFORMED LT PACK BITE CHECK IAW AMM 21-51-00-700-803. NO FAULTS INDICATED.Jan 10, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013011093652Warning Light · false activationLEFT PACK LIGHT ILLUMINATED ON FINAL APPROACH. PERFORMED BIT CHECK ON BOTH TEMP CONTROLLERS REF TASK 21-62 TASK 801 NO FAULTS LOGGED, GROUND VERIFICATION CHECKED GOOD REF MM 21-61-00-700-806. ACFT OK FOR CONTINUED SERVICE.Jan 10, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013010893636Warning Light · false activationLEFT PACK ON WITH RECALL. NR 1 PACK TEMP CONTROLLER LOGGED RAM AIR ACT FAULT LAST FLT. PERFORMED BITE CHECK REF FIM 21-62 TASK 801 NO CURRENT FAULTS. PERFORMED RAM AIR FAULT ISOLATION REF FIM 21-62, TASK 837, NO FAULTS. GROUND FUNCTIONAL TEST PASSED.Jan 8, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2013010293593Control Valve · malfunctionedLEFT PACK LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES WITH MASTER CAUTION RESET. LEFT PACK ZONE TEMP CONTROLLER BITE LOGGED TCV FAULT, REF FIM 21-62, TASK 801. REPLACED LEFT TEMP CONTROL VALVE IAW AMM TASK 21-51-10-000-801 AND 21-51-10--400-801. LT PACK/ ZJan 2, 2013 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2012122293515Warning Light · false activationON DESCENT THE LT PACK LIGHT ILLUMINATED & WOULD NOT RESET. PERFORMED FIM 21-62 TASK 801, PACK/ZONE CONTROLLER BITE PROCEDURE. NO FAULTS INDICATED. RAN PACKS WITHOUT PACK LIGHT ILLUMINATING. CONSIDER THIS AN INTERMITTENT FAULT. THERE IS NO MX HISTORY WITHIDec 22, 2012 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2012112893380Warning Light · false activationFMC DISAGREE DURING TAXI. ACCOMPLISHED QRH PROCEDURE. NORMAL OPS RESTORED.Nov 28, 2012 · N531AS · Boeing 737890 · Flight Management Computing Hardware SystemSDR ASAA2012102093166Screw · vibrationVIBRATION ANOMALY ON NR 2 ENGINE, ALL PARAMETERS ARE WITHIN LIMITS. ACCOMPLISHED TSR WEIGHTS ON ENGINE. MATCHED THE AAVM LOC. 24-P12 & LOC 26-P12 PERFORMED ONE PLANE BALANCE & CHANGED CONFIG TO NEW SOLUTION - LOC 24 FROM P12 TO P14, 26 FROM P12 TO P14, LOC 2Oct 20, 2012 · N531AS · Boeing 737890 · Turbine Engine Air Inlet SectionSDR ASAA2012101393107A/C Pack · warning lightRT PACK LIGHT ILLUMINATED ON RECALL. RT PACK AUTO TEMP CONTROLLER BITE TEST ACCOMPLISHED IAW MM 21-61-00 AND TCV FAULT CLEARED AND NO CURRENT FAULTS, OPS CK GOOD.Oct 13, 2012 · N531AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2012100993094Regulator · inoperativeAFTER START UP, DUCT PRESSURE SPLIT OF APPROXIMATELY 12 PSI LT 8- RT 20. ACCOMPLISHED FAULT ISOLATION PROCEDURES TASK 36-10 TASK 804. TROUBLESHOT TO HIGH STAGE REGULATOR. R & R IAW TASK 36-11-07, OPS NORMAL.Oct 9, 2012 · N531AS · Boeing 737890 · Pneumatic Distribution SystemSDR ASAA2012091592893Pressure Switch · malfunctionedAT GATE ON APU PWR W/ PACKS RUNNING IT KICKED PWR OFF AND FAULT LT. CAME ON, WE PUT EXT PWR ON BUS. ACFT GROUNDED. REMOVED STARTER GENERATOR FILTER HSG AND FILTER ELEMENT IAW 49-91-12. NO CONTAMINATION OF FILTER ELEMENT NOTED. R & R STARTER GENERATOR OILSep 1, 2012 · N531AS · Boeing 737890 · APU Oil SystemSDR ASAA2012091192870Panel · looseWHILE ACCOMP TC 78472000 ENG INLET & FAN DETAIL INSPECTION. FOUND NR 1 ENG INBD LOUVER PANELS LOOSE 200 & 600 POSITIONS AFT LOOKING FWD. ACFT GROUNDED. NR 1 ENG TIGHTENED LOUVER PANELS AT 200 & 600 POSITIONS REF AMM 72-23-07. OK FOR CONT SERVICE.Sep 1, 2012 · N531AS · Boeing 737890 · Nacelle/Pylon, Plate/SkinSDR ASAA2012083192799Warning Light · false activationRIGHT SIDE PACK LIGHT AFTER START. ACFT GROUNDED. TROUBLESHOT IAW FIM TASK 21-62-00-810-828. APPEARS TO HAVE BEEN AN INTERMITTENT FAULT. BITE VERIFICATION TEST NORMAL. OPERATED BOTH PACS, NO FAILURES NOTED.Aug 3, 2012 · N531AS · Boeing 737890 · Central WarningSDR ASAA2012082892788Fmc · false indicationAT START OR TAXI, FMC DISAGREE FAULT ILLUMINATED ON NAV DISPLAY. ACFT GROUNDED. PERFORMED FMC DISAGREE CHECKLIST, WHICH CORRECTED FAULT. OPS NORMAL.Aug 2, 2012 · N531AS · Boeing 737890 · Flight Management Computing Hardware SystemSDR ASAA2012081192688Control Panel · inoperativeAUTOPILOT LIGHT WILL NOT ILLUMINATE. ACFT GROUNDED. R & R DFCS MODE CONTROL PANEL IAW AMM 22-11-34, OPS CHECK GOOD IAW AMM 22-11-34-740-801, LRU INTERFACE TEST AND 22-11-00 LAND VERIFY TEST, ACFT IS AUTOLAND AND HGS CAT III QUALIFIED.Aug 1, 2012 · N531AS · Boeing 737890 · Autopilot SystemSDR ASAA12511612Unknown · unknownAUTOPILOT ENGAGE, B LIGHT DOES NOT ILLUMINATE. ACFT GROUNDED. ACCOMPLISHED DFCS LRU INTERFACE FOR MCP CHAN B AND VERIFIED CMD B ENGAGE LIGHT ILLUMINATES WHEN PUSHED REF MM 22-11-34. OPS NORMAL.May 29, 2012 · N531AS · Boeing 737890 · Autopilot SystemSDR ASAA12511377Connector · brokenNR 1 ENGINE START FAILED WITH NO EGT AFTER FUEL FLOW INITIATED. QRH PROCEDURE COMPLETED. FOUND THE PIN FOR THE INGITION LEAD RECEPTACLE OF THE RT EXCITER BOX BROKEN OFF INSIDE THE IGNITOR LEAD. REPLACED THE RIGHT IGNITION EXCITER AND LEAD PER MM 74 11 01 ANApr 9, 2012 · N531AS · Boeing 737890 · Ignition System WiringSDR ASAA12511191Window · overheatedRIGHT FWD WINDOW OVERHEAT. BOTH R1 WINDOW HEAT CIRCUITS ARE BAD. R1 WINDOW REQUIRES REPLACEMENT. SENSOR FAULT WHCU R FRONT CHANGED SENSOR SWITCH 51079 TO SPARE NO HELP SWAPPED WHCU R FRONT WITH WHCU L SIDE PROBLEM STAYS WITH R FRONT. RETURNED WHCU'S TO ORIMar 5, 2012 · N531AS · Boeing 737890 · Flight Compartment WindowsSDR ASAA12511008Start Valve · faultyNR 1 ENG START VALVE OPEN LIGHT STAYED ILLUMINATED FOR 20 SECONDS AFTER START SWITCH AUTOMATICALLY SWITCHED OFF. REPLACED START VALVE REF AMM 80 11 03 000 801 F00 & 80 11 03 400 801 F00. COMPLIED W/ PNEUMATIC LEAK CK NO LEAKS NOTED REF AMM 71 00 00 700 809 FJan 27, 2012 · N531AS · Boeing 737890 · Engine Start Valves/Controls
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